The AMM Series are economical CATV agile audio/video modulators. They join Blonder Tongue's family of modular headend components and work in conjunction with the MIRC-12V rack chassis and MIPS-12C power supply. Two models are available to cover channel frequencies between 54-806 MHz. The AMML-550 provides channel coverage from 2-78 (54-550 MHz) and the AMMH-806 from channels 55-125 (408-806 MHz). Channel selection is done by easy to use front panel DIP switches. FCC frequency offsets per Docket 21006 are automatic via the units internal pre-programmed micro processor. The AMM Series accept standard audio/video sources such as satellite receivers, television camera, video tape recorders or demodulators.  The advanced design ensures access for all level and over-modulation controls via the front panel. The audio pre-emphasis can be disabled internally for use with a BTSC Stereo Encoder.

RF
CATV Frequency Range:
AMML-550: 54-550 MHz (Ch’s 2-78, 95-99)
AMMH-806: 408-806 (Ch’s 55-94, 100-125)
AMMH-806: 54-806 (Ch's 2-125)
Output Level - Min:
35-45 dBmV, Continuously Variable
Aural/Visual Carrier Ratio: -12 to -18 dB
Visual Carrier Frequency Tolerance
Standard Channels: ±10 kHz
FCC Aeronautical Channels (AMML Only): ±5 kHz
4.5 MHz Aural Inter Carrier Frequency: ±150 Hz (max)
Spurious Outputs: -60 dBc
C/N Ratio In Channel: 60 dB
Broadband Noise: -75 dBc
Output Impedance: 75 ohm
Output Return Loss: 10 dB

Video
Input Level: 1.0 V p-p
Frequency Response
fv-0.5 MHz to fv+4.2 MHz: ±1.0 dB
Input Impedance: 75 ohm
Input Return Loss: 18 min, dB
Differential Phase: 2.0°
Differential Gain: 1.0%
Group Delay Response:
Meets FCC CATV Predistortion Requirements for Color Operation

Stock No. Model Description
AMML-550 7761 Modular Agile Audio/Video Modulator, +45 dBmV, 54-550 MHz Agile
AMMH-806 7762 Modular Agile Audio/Video Modulator, +45 dBmV, 408-806 MHz Agile
AMMH-806 7763 Modular Agile Audio/Video Modulator, +45 dBmV, 54-806 MHz Agile

Audio
Input Level: 0.4 to 4.0 V p-p
Frequency Range:
30 Hz to 15 kHz, ± 0.5 dB
(Exceeds 100 kHz with Pre-emphasis Defeated)
Input Impedance: 10k Ohm, Unbalanced
Distortion: 30 Hz to 15 KHz 0.6%

General
Power Requirements
Voltage: 12 VDC @ 155mA
Power: 5 VDC @ 265A
Temperature: 0° to 50° C

Mechanical
Dimensions (WxHxD):
1.15 x 3.5 x 7.5 in
29 x 89 x 191 mm
Weight: 0.8 lbs, .36 kg
Connectors (Rear Panel)
Video Input: “F” Type, Female
Audio Input: RCA Phono
RF Output: “F” Type Female
Power: Header, 3 Pin
Controls (Front Panel)
Channel Selection: Dip Switches
Video Level: Control
A/V Ratio: Control
Audio Level: Control
RF Output Level: Control
Indicator (Front Panel)
Power ON: LED